Home / 77,609.04-107,113.36-45,785.76

Finding the Fourth Proportional to 77,609.04, 107,113.36 and 45,785.76

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Solution

The fourth proportional to 77,609.04, 107,113.36 and 45,785.76 is: 63,191.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,609.04 : 107,113.36 = 45,785.76 : x
  2. Step 2: Convert to fraction form
    77,609.04/107,113.36 = 45,785.76/x
  3. Step 3: Cross multiply
    77,609.04x = 107,113.36 × 45,785.76
  4. Step 4: Simplify right side
    77,609.04x = 4,904,266,593.75
  5. Step 5: Solve for x
    x = 4,904,266,593.75/77,609.04
  6. Step 6: Final answer
    x = 63,191.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.